Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Leah Mass, LCSW

Individual provider Clinical Social Worker · NPI 1417504069

Leah Mass, LCSW is a Clinical Social Worker in Aurora, Colorado. Practices as a sole proprietor and works from 3 locations. Licensed in Colorado.

Licensed in
CO
In the registry since
2019
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

14221 E 4th Ave Ste 2-126
Aurora, CO 80011-8735
Phone: (720) 507-4779
Fax: (833) 941-5047
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 2675 S Abilene St Ste 100, Aurora, CO 80014-2363 — (720) 507-4779
  • 6525 Gunpark Dr Ste 370-220, Boulder, CO 80301-3346 — (720) 727-7823

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence CSW.09927318 (CO)

Record details

NPI number1417504069
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorYes
NPI enumeratedAugust 19, 2019
Last updated in NPPESNovember 27, 2024
Certification dateNovember 27, 2024

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